Rust stains in shower

[Comps83]

Is there any way of getting rust stains off tiles in the shower?
The screw holding the shower to the wall has rusted and we now have a nice big rust stain running down the shower

barkeepers friend will work. the website explains which product to use and how x
www.barkeepersfriend.com/how-to-remove-rust-stains-from-the-shower/

Thanks I'll give that a go